MAGNA-SINE™ magnetic sine plates are equipped with
extremely powerful ceramic magnet chucks. Having stationary magnets in the top
plate and a movable magnet core, these chucks provide an average
holding power of up to 100 pounds per square inch. This is nearly
twice the holding power of a standard chuck!

The chucks provide
maximum holding of both small & large parts due to a combination
fine / standard pole spacing.

The
swivel block provides full face contact with gage blocks keeping
them securely in place.

The gage block & hinge rolls are
made from hardened steel, ground and lapped for straightness and
roundness.

An
exclusive locking device inside the hinge roll provides a positive
lock with an expanding action. Both screws lock toward the front of
the unit, pulling the top plate down on the set-up gage blocks
without distortion.

The
angular accuracy is guaranteed to be within 5 seconds of arc up to
15°, 10 seconds up to 30° and 15 seconds up to 45°.